Magnetostratigraphy of the Jurassic/Cretaceous boundary

Research Article| July 01, 1986 Magnetostratigraphy of the Jurassic/Cretaceous boundary James G. Ogg; James G. Ogg 1Department of Geosciences, Purdue University, West Lafayette, Indiana 47907 Search for other works by this author on: GSW Google Scholar William Lowrie William Lowrie 2Institut für Geophysik, ETH-Honggerberg, Zürich, 8093 Switzerland Search for other works by this author on: GSW Google Scholar Geology (1986) 14 (7): 547–550. https://doi.org/10.1130/0091-7613(1986)14<547:MOTJB>2.0.CO;2 Article history first online: 01 Jun 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn MailTo Tools Icon Tools Get Permissions Search Site Citation James G. Ogg, William Lowrie; Magnetostratigraphy of the Jurassic/Cretaceous boundary. Geology 1986;; 14 (7): 547–550. doi: https://doi.org/10.1130/0091-7613(1986)14<547:MOTJB>2.0.CO;2 Download citation file: Ris (Zotero) Refmanager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentBy SocietyGeology Search Advanced Search Abstract There is no internationally recognized standard for the Jurassic/Cretaceous boundary; a precise biostratigraphical correlation between different paleobiogeographic provinces is impossible due to barriers blocking faunal exchange. This problem may be overcome by using magnetic polarity events, which are globally isochronous. The magnetic polarity time scale of the latest Jurassic and earliest Cretaceous enables determination of the relative timing and age span of several possible definitions of this system boundary among different biostratigraphies within the Tethys-Atlantic faunal realm; therefore, the polarity scale can be used as a regional standard for this interval of time. The base of reversed polarity chron M18 falls in the middle of the interval covered by various recent definitions of the Tethyan Jurassic/Cretaceous boundary. If polarity chron M18 also proves to be recognizable in the Boreal realm, then its basal magnetic reversal could serve as a precise, globally correlatable event for defining the Jurassic/Cretaceous boundary. This content is PDF only. Please click on the PDF icon to access. First Page Preview Close Modal You do not have access to this content, please speak to your institutional administrator if you feel you should have access.